Празападнокавказский: *rǝq:(ʷ)a
Значение: 1 (arable) field 2 steppe 3 valley
Абхазский: á-rχa 3
Абазинский: rqa 1,2
Убыхский: tχʷa 1
Комментарии: PAT *rǝqa (cf. also Bzyb. á-rχa). Ub. def. á-tχʷa. Not quite clear is the loss of labialisation in PAT; otherwise correspondences are regular (in Ub. *rǝq:ʷa > *dǝqʷa > *tqʷa, regularly fricativized to tχʷa).
